Plant Systematics and Evolution

, Volume 277, Issue 1–2, pp 21–60 | Cite as

Chromosome numbers in Pinguicula (Lentibulariaceae): survey, atlas, and taxonomic conclusions

  • S. Jost Casper
  • Rosemarie Stimper
Original Article


Our study (survey, atlas of 136 microphotographs and 67 drawings) points out the actual chromosome numbers of 82 taxa of the genus Pinguicula L. They were gathered from literature and critically examined. In addition, numerous counts are published for the first time. They represent about 80% of all the taxa known. The basic chromosome numbers are x = 6, 8, 9, 11, and 14; the ploidy levels are 2n (diploid), 4n (tetraploid), 8n (octoploid) and 16n (hexadecaploid). The basic number x = 6 is a one-off, x = 8 and 11 are the most frequent in the genus; x = 14 indicates a hybridogenous differentiation process in the past. The caryological differentiation—chromosome numbers and ploidy level—is discussed with regard to distribution pattern, growth type, and infrageneric classification (at the level of sections).


Pinguicula Lentibulariaceae Chromosome numbers Critical survey Atlas of microphotographs 



We got living material for our chromosome studies from Dr. Maria Ansaldi (Pisa, Italy), P. Debbert (Munich, Germany), O. Gluch (Harthausen, Germany). M. Gube (Jena, Germany), P. Harbarth (Dossenheim, Germany), Prof. Dr. L. Kashta (Tirana, Albania), Prof. Dr. E. Köhler (Berlin, Germany), J. Lautner, (BG Göttingen, Germany), R. Mangelsdorff (Frankfurt/Main, Germany), Dr. A. Schmidt (Berlin, Germany), Dr. M. Studnička (Liberec, Czech Republic), F. Fuchs (BG Linz, Austria), Dr. L. Shuka and Prof. Dr. Xhulaj (both Tirana, Albania), Prof. Dr. J. Steiger (Bern, Switzerland), M. Welge (Barsinghausen, Germany), PD Dr. K. Zoglauer (Berlin, Germany). To all of them we are greatly indebted. The specimens were professionally cultivated by Mr. Wolf from BG Jena, who committed successfully large amount of his time to provide us with living specimens and to find out new and suited culture methods. Our work was critically accompanied by Prof. Dr. F. Hellwig, Dr. H. Manitz (both of Jena, Germany), Dr. B. Rice (Davis, USA), Dr. W. Spanowsky (Dresden, Germany), PD Dr. J. Schlauer (Frankfurt/Main, Germany—to whom we are much indebted for correcting our poor English), and Prof. Dr. J. Steiger (Bern, Switzerland).


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Friedrich-Schiller-Universität Jena, Institut für Spezielle BotanikJenaGermany

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